Lubricating apparatus



Jan. 3, 1928.

\ L. A. LARSSEN LUBRIGATING APPARATUS Filed "larch 14; 1922 Ii'a/veni/or Lars ulLaresve r0. 6 Emm Ma -r Y fliqya.

- amt... 1.... 3, 1928. 1,655,189

' UNITED STATES PATENT OFFICE.

nunmca'rme APPARATUS.

Application filed March 14, 1922. Serial No. 543,552.

' 'This invention pertains tdimp'rovements tions 9. Between the top portion 15 and in lubricating apparatus, and more particuthe skirt portion 16, I have shown a spring 7 larly, though not exclusively, to the pro- 17, preferably annular as illustrated, and 55 tection of lubricant-receiving tubular couadapted to snap over the head 13 of the pling members from dirt and the like by the coupling part to embrace the neck 14 and provisionof suitable caps. hold the cap firmly on the coupling member It is among the objects of the invention or nipple. to provide a cap for a lubricant-receiving The sprmg 17 is thus loosely held within 60 coupling member which is easy to apply and. the casing, no substantial movement axially rotect the of the casing being permitted by reason of coupling'member from dust and dirt. the over and underlying shoulder presented In the drawings which show a preferred. by the parts and 16 of the casing. No form of one embodiment of my invention substantial transverse movement of the 65 Figure Us a side elevation of 'a lubricant- -spring 17 can take place because it is sur- 7 receiving tubular coupling member provided rounded by the outer flange of the casing with a preferred form of cap; part .15. In the preferred form of myin- Fig. 2 is a top view of the cap illustrated yention illustrated, the spring 17 lies with in F1g. 1; V Its outer edges behind the plane of portions 7 Fi 3 is aside elevationof the coupling of the skirt part 16 of the casing (as best 20. mem r with the cap removed; viewed in Fig. 5-), while the inner portion Fi 4 is an end elevation of the coupling of theannulus forming the spring lies inside mem er shown in Fig. 3; A o the planes of the sides of the skirt per 7 Big. 5 is a bottom view of the cap illustion of the casing so that, when the nipple 75 t d in Figs. 1 and 2; is entered in the" casing, the head 13 thereof 6 is a section through the coupling will wedge apart and open thespring 17 mem' er and cap on the line 66 of Fig. 2; until the latter sna s into the neck 14. and v I ere, as in the. pre erred form of myine .Fig. 7 is a section on the line 77 of ventlon illustrated, the neck 14. is provided so Fi 6. 4 by a gentle taper, the removal ofthe cap fieferring to the drawings and to theprefrom t e coupling'member or nipple may be ferred form of my invention selected for. very easily efi'ected, especially where, as ustrative purposes, I have shown a luillustrated, substantial shoulder means (herebricant-receiving tubular coupling member. in typified by the overhanging or shoulder 8 presenting laterally extending projections portions'21) are provided on the cap mem-' 35 9, herein-shown as three'in number.- Through her. A As the spring is not rigidly connected the coupling member, I have shown a conto the casin there may be some rattle of duit forthe passageof lubricant to the part the latter u ess the skirt portion 16 or other to be lubricated, this conduit preferably conportion of the casing fits relatively tighten ;..'taining, as illustrated, a spring 10 ressing against some part of the nipple or coupl' a ball check 11 normally to close a lu ricantmember. To prevent this rattle without receiving-opening 12 in the lubricant-receivgreat accuracy in the manufacture of the in end of the coupling member. At this parts,I may rovide an instruck boss 22 on In ricant-rec'eivin'g end of the cou ling one of the si es of the skirt portion of the 95 member, I haveshown ahead-13, an becasing, this boss being of any suitable shape, neath this head '13 I have shown a recessed herein shown as'a cross, and exertmg a slight portion or neck 14: The preferred form of pressure against the underlying face a cap illustrated includes a casing formed of lateral projection on the nipple. two parts, the top part 15 and a. skirt part WhileI have shown and described a preloo 1.6, the top part 15 being adapted to enclose ferred form of one embodiment of my inven 0 the lubricant-receiving end of the nipple and tion, it be understood that changes inthe skirt part 16 ing adap'tedto protect vol omission, substitution, alteration and V the lateral and outer faces of the projecrev of parts," and even changes in the which is best defined in mode of operation, may be parting from the scope the following claims. Claims: Y

1. The combination with a lubricant-repling member presenting a casing inc udmg.

ceiving tubular coupling member presenting at its lubricant-rece ving end a head,cen-

said coupling means,

. top portion and skirt portionfor engage-i tral projecting closing coupling means of greater cross-sectional area than the cross-sectional area of said head, and-a neck portion above said neck portion of lesser cross-sectional of a dust cap presenting a top portion f or closing said lubricant-rece ving end, askirt portion laterally enclosing said coupling means, and a resilient portion between said- -ment insaid neck portion to hold said dustcap on said coupling member. 7 g i 2. The combination. with; a lubricant-re ceivin tubular coupling latera y extending coupling projections and presentlngat the lubricant-receiving. end a head,

and presenting a neck between said head and said projections,

said lubricant-receiving end containing a spring for engagement with said neck, said cap including covering portions extending over projections thereby toform a protective covering for said couplingrprojections.

. 3. A cap for a lubricant-receiving coupling membercomprising a casing aving an end forenclosing the lubricant-receiving opening of the member,aas ring contained in the cap for r:-

. adjacent -the lubricant-receiving opening of Y the member and a cover ortion at the opposite side of said spring cover shaped tect lateral coupling projections ,on said member.

4. A cap itor a lubricant-receiving doumade without deof my invention,

-' tions crimpedtogether,

area than said head,

tions crlmped together,

pling member presenting men 1berhaving two parts crimped together and containin of a cap for V and laterally enclosing said" -between said top and agagement eneath ahead omsaid end,-sa1d= laterally to overlie andip'ro- :pling member-presenting a casing including a 'top portion and a skirt portion, said porand a-- spring held between said portions.

5. A cap for a lubricant-receivin coua top portion and a; skirt portion, saidportions crimped together, and an annular spring held, between said portions.

6. A ca 3 for a lubricant-'receivin pling mem er presenting a casing including a top portion and 'a skirt-portion, said porand. a spring held or coubetween said portions, said skirt portion presenting spring-locating shoulder means and'said top pormeans at the other side of .said spring,

scoua separate springheld. against substantia movement. axially of-the cap by' saidtwo a casing inc 'udingpieces ofthe casing-andheldagaiiist s'ubto said axis by one of said pieces. lubricant-restantial' movement in'a directiontransverse 8. The combination with a ceivmg n pple hav1ng. a.

central coupling portion, a head beyond said :conpling portion and aneck pling portion, of=a dust cap having a'skirt portionffor covering said coupling portion, a top portion for covering said spring held against longitud'mal movement skirt portions for ensaid neck, said spring adaptgagement with portion ed toiabut, against said 1 coupling therebyto'pyevent further movement ofsaid cap over the nipple.

.In testimony whereof l. have signed my name to this specification. a

ANDREw-LaRssEN.

head and a between s'aidhead and con-v 

